Do not merely listen to the word, and so deceive yourselves. Do what it says. Anyone who listens to the word but does not do what it says is like a man who looks at his face in a mirror and, after looking at himself, goes away and immediately forgets what he looks like. But the man who looks intently into the perfect law that gives freedom, and continues to do this, not forgetting what he has heard, but doing it — he will be blessed in what he does.

The Bible (The New Testament) (AD 1st - 2nd C) Christian sacred scripture

James 1:22-25 (NIV)

• KJV: But be ye doers of the word, and not hearers only, deceiving your own selves. For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass: For he beholdeth himself, and goeth his way, and straightway forgetteth what manner of man he was. But whoso looketh into the perfect law of liberty, and continueth therein, he being not a forgetful hearer, but a doer of the work, this man shall be blessed in his deed.
• TEV: Do not deceive yourselves by just listening to his word; instead, put it into practice. Whoever listens to the word but does not put it into practice is like a man who looks in a mirror and sees himself as he is. He takes a good look at himself and then goes away and at once forgets what he looks like. But whoever looks closely into the perfect law that sets people free, who keeps on paying attention to it and does not simply listen and then forget it, but puts it into practice -- that person will be blessed by God in what he does.